review fixes: 1.19.0 is the real version boundary, and the preamble stamp matches its bytes again

endpoints.md named 1.18.x as the version where workspace hooks became a
setting, but 1.18.x servers do NOT have this behavior — an agent driving
one would falsely conclude its workspace has hooks. The feature ships in
1.19.0. And preamble.sh changed content this PR without bumping its
CODEMAN_PREAMBLE stamp, so a cache stamped 1.18.3 would pass the
staleness check while holding old bytes; stamp bumped to 1.19.0 in
preamble.sh and the SKILL.md heredoc together (byte-identity pin).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

skills/codeman/SKILL.md

@@ -47,7 +47,7 @@ later call opens with, and your first REAL call performs them anyway:
 
 ```bash
 . "${XDG_CACHE_HOME:-$HOME/.cache}/codeman-agent-$CODEMAN_SESSION_ID.sh" 2>/dev/null
-[ "${CODEMAN_PREAMBLE:-}" = 1.18.3 ] || { echo "preamble missing or stale; run the full §0 block"; exit 1; }
+[ "${CODEMAN_PREAMBLE:-}" = 1.19.0 ] || { echo "preamble missing or stale; run the full §0 block"; exit 1; }
 ```
 
 ⚠️ **Never spend a Bash call on this check alone.** §1's block opens with this same
@@ -75,8 +75,8 @@ PRE="${XDG_CACHE_HOME:-$HOME/.cache}/codeman-agent-$CODEMAN_SESSION_ID.sh"
 mkdir -p "$(dirname "$PRE")"
 # Rewrite unless the file already ends with THIS version's stamp, so a stale or a
 # half-written file self-heals here instead of costing you a round trip to rm it.
-grep -qs '^CODEMAN_PREAMBLE=1.18.3$' "$PRE" || (umask 077; cat > "$PRE" <<'PREAMBLE'
-# ---- Codeman agent preamble 1.18.3 (seeded by Codeman at session spawn; the SKILL.md §0 bootstrap rewrites it when missing or stale) ----
+grep -qs '^CODEMAN_PREAMBLE=1.19.0$' "$PRE" || (umask 077; cat > "$PRE" <<'PREAMBLE'
+# ---- Codeman agent preamble 1.19.0 (seeded by Codeman at session spawn; the SKILL.md §0 bootstrap rewrites it when missing or stale) ----
 API="${CODEMAN_API_URL:?CODEMAN_API_URL not set; refusing to guess}"
 SELF="${CODEMAN_SESSION_ID:?CODEMAN_SESSION_ID not set}"
 # Credentials, cheapest first. Your session has usually INHERITED the server's
@@ -233,10 +233,10 @@ last_text() {
 # The stamp is the LAST line on purpose (a truncated write leaves it unset) and is kept
 # bare on purpose: the write condition above anchors on it with $, so an inline comment
 # here would fail that match and rewrite this file on every single bootstrap.
-CODEMAN_PREAMBLE=1.18.3
+CODEMAN_PREAMBLE=1.19.0
 PREAMBLE
 )
-. "$PRE"; [ "${CODEMAN_PREAMBLE:-}" = 1.18.3 ] || { echo "preamble at $PRE is stale or truncated: rm it and re-run this block"; exit 1; }
+. "$PRE"; [ "${CODEMAN_PREAMBLE:-}" = 1.19.0 ] || { echo "preamble at $PRE is stale or truncated: rm it and re-run this block"; exit 1; }
 ```
 
 Every later Bash call that touches the API starts with the same two loader lines from
@@ -287,7 +287,7 @@ and no per-call body to hand-build.
 
 ```bash
 . "${XDG_CACHE_HOME:-$HOME/.cache}/codeman-agent-$CODEMAN_SESSION_ID.sh" 2>/dev/null   # §0 loader
-[ "${CODEMAN_PREAMBLE:-}" = 1.18.3 ] || { echo "preamble missing or stale; run the full §0 block"; exit 1; }
+[ "${CODEMAN_PREAMBLE:-}" = 1.19.0 ] || { echo "preamble missing or stale; run the full §0 block"; exit 1; }
 N=(alpha beta)                    # INVENT one fresh case name per worker; never list cases first
 T=('reply with one line: the absolute path of your working directory'
    'reply with one line: your model name')            # tasks, same order as N

skills/codeman/preamble.sh

@@ -1,4 +1,4 @@
-# ---- Codeman agent preamble 1.18.3 (seeded by Codeman at session spawn; the SKILL.md §0 bootstrap rewrites it when missing or stale) ----
+# ---- Codeman agent preamble 1.19.0 (seeded by Codeman at session spawn; the SKILL.md §0 bootstrap rewrites it when missing or stale) ----
 API="${CODEMAN_API_URL:?CODEMAN_API_URL not set; refusing to guess}"
 SELF="${CODEMAN_SESSION_ID:?CODEMAN_SESSION_ID not set}"
 # Credentials, cheapest first. Your session has usually INHERITED the server's
@@ -155,4 +155,4 @@ last_text() {
 # The stamp is the LAST line on purpose (a truncated write leaves it unset) and is kept
 # bare on purpose: the write condition above anchors on it with $, so an inline comment
 # here would fail that match and rewrite this file on every single bootstrap.
-CODEMAN_PREAMBLE=1.18.3
+CODEMAN_PREAMBLE=1.19.0

skills/codeman/reference/endpoints.md

@@ -624,7 +624,7 @@ is now installed by default rather than depending on who created the directory:
 | any claude workspace, with `workspaceHooksEnabled` ON (the default) | installed at session create, add-only merge | fire | send-and-wait on `stop` |
 | the same, with the setting OFF and no block already on disk | none added | never fire | `wait-output` markers only |
 | a remote SSH session, a docker case that opted out, a workspace Codeman cannot write | none | never fire | `wait-output` markers only |
-| a session created by a pre-1.18.x server and never restarted since | whatever it had | only if present | check, then choose |
+| a session created by a pre-1.19.0 server and never restarted since | whatever it had | only if present | check, then choose |
 
 The install is an add-only merge, so a user's own hook entries survive and a malformed
 settings file is left untouched. Sessions recovered at server boot get the same sweep,
@@ -632,7 +632,7 @@ which is what heals sessions created before this behavior existed. When in doubt
 it rather than reason about it: grep for `/api/hook-event` in
 `<casePath>/.claude/settings.local.json`.
 
-Before 1.18.x, `writeHooksConfig()` ran only on the create paths and `quick-start`
+Before 1.19.0, `writeHooksConfig()` ran only on the create paths and `quick-start`
 against an existing directory called `refreshStaleCodemanHooks()`, which never *adds* a
 block, so a linked case or a raw `workingDir` had no hooks at all. `POST
 /api/cases/link` still only records a name-to-path entry; what changed is that the